From 9b07ef5ddaced1e822b1a1fb1da088eb15c45cb4 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 20 Mar 2006 17:16:17 -0800 Subject: [DCCP] ackvec: Introduce dccp_ackvec_slab Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/dccp/ackvec.c | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) (limited to 'net/dccp/ackvec.c') diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c index 348374005db0..64408253b14e 100644 --- a/net/dccp/ackvec.c +++ b/net/dccp/ackvec.c @@ -13,10 +13,16 @@ #include "dccp.h" #include +#include +#include +#include #include +#include #include +static kmem_cache_t *dccp_ackvec_slab; + int dccp_insert_option_ackvec(struct sock *sk, struct sk_buff *skb) { struct dccp_sock *dp = dccp_sk(sk); @@ -96,7 +102,7 @@ int dccp_insert_option_ackvec(struct sock *sk, struct sk_buff *skb) struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority) { - struct dccp_ackvec *av = kmalloc(sizeof(*av), priority); + struct dccp_ackvec *av = kmem_cache_alloc(dccp_ackvec_slab, priority); if (av != NULL) { av->dccpav_buf_head = @@ -115,7 +121,7 @@ struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority) void dccp_ackvec_free(struct dccp_ackvec *av) { - kfree(av); + kmem_cache_free(dccp_ackvec_slab, av); } static inline u8 dccp_ackvec_state(const struct dccp_ackvec *av, @@ -420,3 +426,27 @@ int dccp_ackvec_parse(struct sock *sk, const struct sk_buff *skb, len, value); return 0; } + +static char dccp_ackvec_slab_msg[] __initdata = + KERN_CRIT "DCCP: Unable to create ack vectors slab cache\n"; + +int __init dccp_ackvec_init(void) +{ + dccp_ackvec_slab = kmem_cache_create("dccp_ackvec", + sizeof(struct dccp_ackvec), 0, + SLAB_HWCACHE_ALIGN, NULL, NULL); + if (dccp_ackvec_slab == NULL) { + printk(dccp_ackvec_slab_msg); + return -ENOBUFS; + } + + return 0; +} + +void dccp_ackvec_exit(void) +{ + if (dccp_ackvec_slab != NULL) { + kmem_cache_destroy(dccp_ackvec_slab); + dccp_ackvec_slab = NULL; + } +} -- cgit v1.2.3-59-g8ed1b